How to Remove the Salt From a Brick

Salt stains can be removed from brick with the right chemicals. (Image: Jupiterimages/Photos.com/Getty Images)

Salt deposits on brick are a sign that moisture has regularly passed through it. As the water is drawn into the masonry and evaporates, it leaves behind its salts on the surface. This white residue is called efflorescence. Efflorescence itself is not a concern, but the regular penetration of moisture into the wall system can cause damage internally. The removal of efflorescence is done with chemicals specially designed for this task. These products are acid-based, so take the appropriate precautions.

Things You'll Need

Hose (optional)

Efflorescence chemical solution

Safety glasses

Acid-resistant gloves

Bucket

Scrub brush

Baking soda

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Wet the brick with water. If the surface you're trying to repair is outdoors -- an exterior brick wall, for example -- use a hose.